Evaluation of systemic fungicides for control of witches' broom disease of cocoa in TrinidadLAKER, H. A.Tropical agriculture. 1991, Vol 68, Num 2, pp 119-124, issn 0041-3216Article

Reactions of cocoa (Theobroma cacao) seedlings and clonal plants to isolates of Crinipellis perniciosa in TrinidadLAKER, H. A.Tropical agriculture. 1990, Vol 67, Num 1, pp 43-48, issn 0041-3216Article

Investigations on integrated control of witches' broom disease of cocoa in Rondonia State, BrazilLAKER, H. A; RAM, A.Tropical pest management. 1992, Vol 38, Num 4, pp 354-358, issn 0143-6147Article